M&S says

This 10.5 tog duvet will keep you cosy and warm at night and is perfect for the autumn and spring or those who simply like to stay cooler at night. This comfortable duvet has a premium cotton-blend cover that’s kind to skin and has a climate control filling, which quickly absorbs excess moisture from your skin keeping you cool and fresh. Made in Great Britain, this duvet is medium-thickness so it’s a great choice for year-round comfort.

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Care and Composition

35 days to return
You may return unused products within 35 days of purchase with a valid parcel summary document. Your items don't need to be in the original box or bag as long as they're securely packaged.

How to return
Simply use our returns portal to print a returns label and returns note. You will then be able to return all or part of your order at your own cost through your preferred carrier. To create a returns label, visit our returns portal select this option and follow the instructions.